Currently, there is no way to rip the footage. You need to capture the footage you want. I'm working on figuring out how to rip the FMVs from FFX (and hopefully other games), but only a fraction of the story scenes in the game are FMV. The VAST majority are rendered on the fly.

Maybe it's somewhat for the better that FFX footage can't so easily be converted...?

I mean, we're only gonna see a few dozen clips go into overkill. So for now...I think it's best for sentimental reasons that some games are to remain locked, as much as we all want it to be cracked. In short, just let it be...